Envelop-making machine.



J. REGENSTEIN.

ENVELOP MAKING MACHINE.

APPLICATION FILED JULY 22, i914.

Patented Mar. 25, 1919.

2 SHEETSSHEET I.

A TTOH/VEY WITNESSES 444, l M/ J. REGENSTEIN.

ENVELOP MAKING MACHINE. APPLICATION FILED JULY 22. 19:4.

1,298,093. Patented Mar. 25,1919

2 SHEETS-SHEET 21 A TTOH/VEY n ma snares ra'ranronrroa.

JULIUS REGEN STEIN, OF CHICAGO, ILLINOIS.

ENVELOP-MAKING MACHINE.

messes.

Specification of Letters Patent.

Patented Mar. 25, 1919.

Griginal application filed Apri1 13, 1 914, Serial No; 831,490. Divided and this application filed July 22, 1914.

' Serial No. 852,878.

To all whom it may concern:

Be it known that I, JULrUs REGENsTEIN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented Iinproveinentsin Envelop-Making Machines, of which the following is a specification.

The invention relates to machines for making envelops, and more especially. to machines for making window envelops, that vis envelops having a transparent portion provide a rotary window cutting device operating upon the web on the run; to pro-' videfor cutting window longitudinally on the web as it runs through the machine; to

provide novel mechanisms for effecting the various functions enumerated. These and other objects of the invention will part-be obvious, and in part will appear hereinafter.

The invention consists in the novel parts,

constructions, arrangements combinations and improvements herein shown and described.

The accompanying drawings, referred to herein and forming a part hereof, illustrate one embodiment of the invention, and together with the description serve to 1l1us-' trate the principles thereof.

Of the drawings:

Figure l is a diagrammatic view of a machine constructed in accordance with the principles of the invention. o

Fig. 2 is a perspective v1ew of the paste applying roller; v

Fig. 3 is a perspective view of the W111;

' dow and notch cutting roller;

Fi 4 is a perspective view of. thecylinder or cutting the window strips from the web' Fig. 5 is a perspective view of another form of the paste ap lying roller;

' elevation, on an en Fig.6isa deta1 larged' scale, with parts broken away, of the window chip removing cylinders; v Fig. 7 is a plan of the web at various stages of completion; and

Fig. 8 is a detail of the drive for window attaching rolls.

the

Referring'by way of example to the accomp'anying drawings, and to the embodiment of the invention illustrated therein, the web 1 is fed in from a suitable source of sup-ply around a cylinder 2, and from there to the gum or f other adhesive-applying mechanism, which may be styled for convenience, thegumming mechanism. In ac-,

cordance withone feature of the invention,

the web is ed for the attachment 0 the transparent v or translucent window strip prior to-the cutting out of the win dow or opening in the face of the envelop j through which the address on the inclosed paper is visible. By applying the gum to theweb'before the window is. cut, the raislng. and curling of the cut edges about the window, as occurs when the window is first cut, is avoided.

e As embodied, rotary gumming. devices are provided acting upon the web soon after it passes the cylinder 2, said devices'comprising an adhesive containing trough 3, inv

which rotates in a suitable manner and by suitable rotating mechanism (not shown) an adhesive conducting roller .4. .A' roller 5 reroller 4, and applies it in proper disposition ceives the gum or other adhesive from the or form upon the web so that the edges o the. window strip when pressed into position will .be adherent to the envelop about the edges of the window opening. A roller 6 cooperates with the gum applying roller 5,

i the web 1 running about and being sup- .portedby the roller or cylinder, 6.

I The gum applying roller 5 has upon its surface a raised face-or welt havin a face hich" contacts with or presses against the web as it runs over the roller 6 and serves to "apply the gum to the web in a form or: disposition correspondin to the form of the member 7. The mom er 7 as embodied" isshaped so as to apply the paste 4 about a window of the usual or. rectangular shape with rounded corners, that is a window of the form shown in Fig. The long sides of the gum applying member 7 are arranged. circumferentially about the ,35. if desired upon a removable block 23,

cylinder ,5, so as to apply the gum or paste longitudinally along a web running between the rollers and 6 in Fig. 1. In Fig. 5, the roller 5 is shown with gum applying members or faces 8 and 9 arranged circumferen-' tially about the cylinder 5, but leavingthe ends of the window unpasted. The cylinder 5 may be made adjustable upon its axis 10,

both longitudinally on the axis or angularly thereabout, by suitable meanssuch as a collar or boss 11, and a clamping screw 12.

The invention provides for cutting out the window from the running web, and provides also rotary cutting means for this purpose.

In the embodied form thereof, a die carrying cylinder is provided, having a raised cutter 16 adapted as shown to; cut a window '4 of rectangular shape with the rounded corners, such :as is shown in Fig.7. The cutter 16 is arranged with its length extending circumferentially about the cylinder 7 15, as shown inFig. 3. The cylinder 15 is mounted upon a shaft 17 and. shaft17 also carries cylinders for cutting out the notches, that is, forming the exterior edges or outlines of the envelop. As embodied, a cylindex #18 is mounted upon the shaft 17, and

is'provided with. a cutter 19 for cutting out-- one of the notches, marked y in Fig. 7.

1 3e The'cutter 19, if desired may be mounted upon a block 20 in the cylinder 18. A cor-- responding device'is provided for cutting out .the opposite notch, indicated by z in 1 omprising a cylinder 21, having a suitablyshaped cutter 22,. likewise mounted The cylinders 15,18 and 21, if desired, may be made adjustable both angularly and longitudinall'y upon the shaftl'f, and for this purpose are provided with bossesior collars 24 and- .clamping screws 25, such as are. shown for the cylinder 18 in Fig. 3. 'A cylinder 26 works fagainst the cutters 16, 19

and ,22, and supports the web in passing therebetween.

Means are provided by the invention removing'the chips? fr conveying them away. thereof comprise-s cyi operating together 11;

for

n the web, and embodied form 30 and 3100- 1e out cr -scariweb passing therebetween (Fig 1' The embodied form thereof is shown in detail in Fig. 6, in which figure the cylinder 30 is shown recessed at 32. In said recess is a blade 33, pivotally mounted at 34, and spring pressed by a spring 35 against the Wall of the recess 32, but being movable against the action of the spring. 35. In the cylinder 31 is formed a recess 36, within which recess is a rocking clamping member or bar 37 which bar is carried upon a rock shaft 38, cylinder 31. The clam ing finger 37 works agamstafac'e 39 oftbe' recess 36. Fixed tothe shaft 38 is an arm 40 having a cam said shaft being mounted in the roller 41.. Ooiiperating with said roller'41 is a cam 42, conveniently mounted on the just described is substantially as folend of the chip, bends it downwardly against the face 39. The clamping. finger 37 may be regarded as being in the open position as shownin- Fig. ,6.- The cam roll 41 riding, off from the cam 42 permits the clamping finger 37 to closeu-pon the'edge of the chip and to hold it firmly against the surface 39. As ,the cylinders 30 'and 31 rotate, the chip now held by the finger 37 iscompletely severed from the web, the chip passing about the. cylinder 31. The

blade '33, as the cylinder rotates, moves against its spring 35, and passes out of engageme'nt with the web, and rotates around to meet the next chip-to be removed. The

. chip above referred to as being carried about the cylinder 31 is carried downwardly, referred to Figs. '1 and 6, until the cam roller 41;,hgain engages the cam 42, when the finger 37 is opened andthe completely severed thip drops from the cylinder 31, or

is removed by a suitable stripping device (not shown). I 1

Suitablemeans are provided for applying 'the't'g ansparent or translucent Window strip to the main envelop web. In accordance.

with certain features of the invention means are prcvided whereby the window strip is. fed from a web roller other supply source a slower speed to compensate for the difference in the required length of the window cut window strip for speeding it. up for attachment to the envelop blank in the run- Web. Thus there is no waste in the window strip, the variation in speed avoiding the cutting of waste portion of the win dow strip web. As embodied, rotary means are provided for this purpose. The window strip 50 is unwound fromajroll 51 strip and of th s corresponding envelop blank, and also means operating upon the running. between feed rollers 52 and 53.

The embodied form ofcutting 'means for the'window strip 50 comprises a cylinder 54 having a cutter 55, which cutter is carried upon a detachable block 56, said block being mounted in the cylinder 54. The cylinder 54 maybe adjustably mounted-upon a shaft 57,, if desired, by suitable means such as bosses5 -nrovided with clamping screws 59. A suitable cylinder 60 cobperates with the cutter 55, the window web passing there'between: Preferably the j cutter 55 works against the hardened surface vof cylinder 60, and the cut window strip is not completely severed, but is left so that the chip may be pulled or drawn away. Such a cut may be conveniently termed a scarification.

The embodied form of means for attaching the window strip to the blanked out and gummed envelop web and for speeding up before the window is cut, a clean, flat, un-

curled edge is preserved around the window,

and by running in the window strip dry italso is maintained clean and flat, and goes on cleanly and neatly.

The embodied form of means for speeding upand separating the partly cut portion at the end of the wlndow strip web comprises gears and 71, mounted to drive cylinders 54 and 61 respectively, and being connected by an intermediate 72. If the gears 70 and 71 are the same size, and cylinder 61 is larger than cylinder 54, cylinder 61 will speed up the window strip as desired. The difference in the running of the two webs also avoids any waste ends of the window strip, and the efi'ecting of these operations on the running web saves time and increases the capacity of the machine.

The manner of operation of the mechanism just described and illustrated is as follows p The strip 50 is preferably scarified or partially severed bythe knife 55,as already explained, and the lead end of the web 50 be yond the scarification or cut runs forward into the bite of .the cylinders 61 and 64, i

which cylinders are running at the speed of the envelop web. The webs areso timed that the lead end of the window strip 50 will be pressed against the gum at the lead end of the corresponding window in the envelop blank, and as the cylinders 61 and 64 rotate,

the partly separated end of the window stripwill be completely severed from the strip, and will pass on adherent upon the envelo blank. A pair of ironing rolls 66 and 6 press the envelop blank and window strip smoothly together and serve to dry the gum. The blanked out envelop web, with the window strip attached in position thereupon then passes forward for the further completing operations thereupon until the separate and complete envelops are produced, and the mechanism for such further operations may be of'any desired form and is not shown herein.

From all the foregoing it will be under stood that a machine has been provided realizing'the objects of invention and the advantages herein set forth, together with other objects and advantages.

It will also be understood that changes may be made from the illustrated and described form within the scope of the accompan'ying claims, without departing from the principles of the invention and without sacrificing its chief advantages.

This application is a division of my application Serial No. 831,490 filed April 13, 1914.

-I claim 1. An envelop making. machine including in combination means for running a flat or unfolded Web, means for applying paste circumjacent to the location. of a window,

means for cutting a window in the flat or unfolded running web within the applied paste, and means located beyond said cutting means at a later point for removing the window chip.

' 2. An envelop making machine including in combination means for running a fiat or unfolded web, means for applying paste circumjacent to the location of a window, and means for cutting a window in the fiat or unfolded running web within the applied paste and rotary means located beyond said cutting means at a later point for removing the window chip.

3. An envelop making machine including in combination means for running a fiat or unfolded web, rotary means for applying paste circumjacentto'the location of a window, rotary means for cutting a window in l the flat or unfolded running web within the applied paste, and-rotary means located beyond said cutting means at. a later point for removing the window chip.

4. An envelop makin -machine including in combination a plurallty of rollers cotiperating with a running web, a pair of intermediate rollers applying paste in conformation for a window opening to the imperforate traveling web, a pair of rollers operating on the pasted web to out a window opening within the applied paste upon the web, and window chip removmg means operating on the web beyond the window cutting rollers. In testimony whereof I'have signed my name to this specification in the presence of two subscribing witnesses.

, JULIUS REGENSTEIN. Witnesses:

L. C. CoNnmN, E. G. RICE. 

